From d576c314ea7d1a99ca4b158ad2ac2513d3d11430 Mon Sep 17 00:00:00 2001
From: ChenyangMao <1901228300@qq.com>
Date: Fri, 17 Nov 2023 18:49:28 -0800
Subject: [PATCH] Add Solvable interface

---
 src/games/crossteaser/mod.rs | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/games/crossteaser/mod.rs b/src/games/crossteaser/mod.rs
index 391bada..757cc5e 100644
--- a/src/games/crossteaser/mod.rs
+++ b/src/games/crossteaser/mod.rs
@@ -113,14 +113,18 @@ implement! { for Session =>
 
 impl Solvable<1> for Session {
     fn weights(&self) -> SMatrix<Utility, 1, 1> {
-        todo!()
+        SMatrix::<Utility, 1, 1>::identity()
     }
 
     fn utility(&self, state: State) -> Option<SVector<Utility, 1>> {
-        todo!()
+        if !self.accepts(state) {
+            None
+        } else {
+            Some(SVector::<Utility, 1>::from_element(1))
+        }
     }
 
     fn coalesce(&self, state: State) -> SVector<Utility, 1> {
-        todo!()
+        SVector::<Utility, 1>::from_element(1)
     }
 }